The images - before and after filtering - comet C/2013 A1, also known as Siding Spring, at a distance of 353 million miles from Earth as captured by Wide Field Camera 3 on NASA's Hubble Space Telescope. Image Credit: NASA, ESA, and J.-Y. Li (Planetary Science Institute)

South Korean army soldiers hold caskets containing the remains of Chinese soldiers to be transported to Incheon International Airport, at the temporary columbarium in Paju. The remains of 437 Chinese soldiers killed during the 1950-53 Korean War were transferred from the temporary columbarium in South Korea to the airport to be returned to China.